2115330247 has 8 divisors (see below), whose sum is σ = 2240932176. Its totient is φ = 1989858432.

The previous prime is 2115330241. The next prime is 2115330251. The reversal of 2115330247 is 7420335112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2115330247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115330241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2008 + ... + 65074.

It is an arithmetic number, because the mean of its divisors is an integer number (280116522).

Almost surely, 2^2115330247 is an apocalyptic number.

2115330247 is a deficient number, since it is larger than the sum of its proper divisors (125601929).

2115330247 is a wasteful number, since it uses less digits than its factorization.

2115330247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65057.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 2115330247 is about 45992.7194999382. The cubic root of 2115330247 is about 1283.6877390703.

Adding to 2115330247 its reverse (7420335112), we get a palindrome (9535665359).

The spelling of 2115330247 in words is "two billion, one hundred fifteen million, three hundred thirty thousand, two hundred forty-seven".